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Southern Georgian Bay

Warnings

Forecast

Marine Forecast

Issued 10:30 AM EDT 16 March 2026

Today Tonight and Tuesday.

Gale warning in effect.

Wind southeast 30 knots diminishing to southwest 20 near noon then increasing to southwest 30 early this evening. Wind increasing to southwest 35 late this evening then veering to west 35 late overnight. Wind diminishing to northwest 30 early Tuesday morning and to northwest 20 near noon Tuesday.

Showers ending this afternoon with a risk of thunderstorms. Flurries tonight and Tuesday. Visibility 1 mile or less in flurries.

Waves

Issued 10:30 AM EDT 16 March 2026
Today Tonight and Tuesday. Over open water waves 1.5 metres subsiding to 1 this afternoon then building to 1.5 this evening. Waves subsiding to 1 Tuesday afternoon.

Extended Forecast

Issued 03:00 AM EDT 16 March 2026
Wednesday Wind light increasing to south 20 knots in the afternoon.
Thursday Wind southwest 20 knots diminishing to light.
Friday Wind light becoming south 15 knots late in the day.

Ice Forecast*

Issued 12:00 PM EDT 16 March 2026 Today Tonight and Tuesday 2 tenths thick lake ice. Consolidated thick lake ice along parts of the shore.

*Ice Forecast and Warnings also apply to U.S. waters

 

[ Canadian Ice Service ]

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Map of Great Lakes - Lake Huron marine weather areas Wiarton Airport Western Islands Cove Island Goderich Lake Simcoe Regional Airport Vineland Station Parry Sound Harbour Sarnia Chris Hadfield Airport Tobermory Muskoka Airport Harrow AAFC Long Point Port Weller St. Catharines / Niagara District Airport Lagoon City Southeast Shoal Burlington Lift Bridge Welland-Pelham Windsor Airport Port Colborne Erieau Peterborough Municipal Airport CFB Trenton Toronto City Centre Airport Point Petre Oshawa Executive Airport Hamilton Munro Int'l Airport Point Pelee Cobourg Port Colborne - 45142 North Channel - 45154 Ajax - 45159 Lake Nipissing - 45152 Sault Ste. Marie Airport Killarney Lake Simcoe - 45151 Greater Sudbury Airport South Lake Huron - 45149 Lake St Clair - 45147 North Bay Airport South Georgian Bay - 45143 Gore Bay-Manitoulin Airport Grimsby - 45139 Georgian Bay - 45137 Great Duck Island Collingwood Kingston Airport Grenadier Island Brockville Prince Edward Point - 45135 Port Stanley - 45132
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land station Land Station
Ice Conditions

*Ice Forecast and Warnings also apply to U.S. waters

Ice Forecasts

Issued 12:00 PM EDT 16 March 2026 Today Tonight and Tuesday

Ice Coverage

2 tenths thick lake ice. Consolidated thick lake ice along parts of
the shore.

Warnings

Warnings (In effect)

Gale warning in effect

Southern Georgian Bay

Issued 10:30 AM EDT 16 March 2026

'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.

Synopsis

Technical Marine Synopsis

Issued 10:30 AM EDT 16 March 2026 Today Tonight and Tuesday At 10:30 a.m. EDT today low 986 mb located over central Lake Huron.
By 10:30 a.m. EDT Tuesday departing low 960 mb located over
central Quebec.

By 10:30 a.m. EDT Tuesday ridge located on a line north-south over
northwestern Ontario.

Great Lakes - Lake Huron Area

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Marine Weather for Canada

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